The price of wood pellets used for heating has tripled on year, and representatives of some companies foresee the risk of possible future wood pellet shortages on the market as well.  Last August, one Euro-pallet of wood pellets with a total weight of nearly 1,000 kilograms cost €150. Currently, however, prices range from €260-420, Briketipoisid chief Argo Kivi told ERR. Prices started to go up last fall already, he said, noting that the price of a pallet of wood pellets had already gone up to €190 last September.  Koit Märtin from Tartu ...